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A novel method of finding the height of an absolutely positioned element. From:
function absElemHeight(element){
var max_y = 0;
$.each( $(element).find('*'), function(idx, desc){
max_y = Math.max(max_y, $(desc).offset().top + $(desc).height());
return max_y - $(element).offset().top;
function absElemHeight(element){
$element = $(element);
if($element.find('.inner').length === 0) {
$element.wrapInner('<div class="inner"></div>');
return $element.find('.inner')[0].scrollHeight;
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